CN110670540A - Construction method for tying ballast soft row and protecting bottom - Google Patents
Construction method for tying ballast soft row and protecting bottom Download PDFInfo
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- CN110670540A CN110670540A CN201910951587.7A CN201910951587A CN110670540A CN 110670540 A CN110670540 A CN 110670540A CN 201910951587 A CN201910951587 A CN 201910951587A CN 110670540 A CN110670540 A CN 110670540A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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Abstract
The invention relates to a construction method of a tied ballast soft mattress protection bottom, which relates to the technical field of soft mattress protection bottom construction in a navigation channel improvement project and comprises the following steps: arranging a guide mark → positioning → fixing the row head → tying a concrete block on the row → sinking the row body, and the like. In the whole construction process, the guide mark and a GPS positioning system are matched for positioning, the running track of the sunken ship is accurately controlled, concrete blocks and soft row bodies are fixed through tying bars to form a whole, then the row bodies are sunken one by one, and the row bodies are reasonably lapped on the ship body one by one according to requirements to ensure the integrity of the bottom protection.
Description
Technical Field
The invention relates to the technical field of soft mattress protection construction in channel improvement engineering, in particular to a tying and ballasting soft mattress protection construction method.
Background
The soft mattress bottom protection mainly utilizes the functions of reinforcement, isolation, protection, reverse filtration and the like of the geotextile to protect the bottom of a building such as a spur dike and the like within a certain range.
Now, a Chinese patent with a publication number of CN107165124A is searched, and the invention discloses a deepwater soft mattress counter-pulling laying construction method, which comprises the following steps: transporting the soft mattress to a position of a laying area; the counter-pull ship and the sand carrier move to a soft raft laying area, and the counter-pull ship is fixed; unfolding the soft raft by the opposite pulling boat and fixing the soft raft; a sand conveying pipe is connected and paved between the counter-pulling ship and the sand washing port of the soft raft; filling sand into the soft body row by using a counter-pulling ship; checking the sand filling condition of the soft body row, if the sand filling condition is unqualified, supplementing sand into the soft body row until the sand filling condition is qualified, and if the sand filling condition is qualified; depositing the soft mattress to a laying position, and marking the laying position of the soft mattress; and moving to the next soft mattress laying area to lay the soft mattresses until all the soft mattresses are laid.
The above prior art solutions have the following drawbacks: however, the soft raft is light in weight and is influenced by wind pressure and water flow in the sinking process, so the soft raft is easy to shake and is not beneficial to the precise laying of the soft raft, and the construction period of the construction method is long and the construction cost is high.
Disclosure of Invention
The invention aims to provide a construction method for a tied ballast soft mattress bottom protection, which has the advantages that a mattress body is not easy to shake in the laying process, the mattress body can be accurately laid, the construction period is short, and the construction cost is low.
The above object of the present invention is achieved by the following technical solutions: a construction method for tying a ballast soft mattress protection bottom comprises the following steps:
step one, setting a guide mark: discharging sinking row guide mark points at the root of the bottom protecting belt according to the designed row width and the sinking row lap width, and marking the sinking row guide mark points for positioning the sinking row of the sinking row ship;
step two, positioning: the electric winches are used for controlling the steel cables to be wound and unwound so as to control the positioning and movement of the sunken ship, the five groups of electric winches are respectively arranged at four corners of the bow and the hull of the sunken ship, one end, far away from the electric winches, of the steel cables is anchored and fixed, a GPS positioning system is arranged on the sunken ship and used for controlling the ship position to move along a designed trajectory line, an electrically driven roller is further arranged on the sunken ship, and the sunken ship is positioned at a first row body design initial position on the downstream side during sunken row and rolls the first row body on the roller;
step three, fixing the row heads: after the row bodies are wound into the winding drum, the row heads of the row bodies on the roller are pulled to a shore at one side by a nylon rope, and the row heads are fixed by a piling pull rope;
step four, arranging concrete blocks: after the row head is fixed, the row body is flatly laid on the sunken ship, the concrete block is lifted from the transport ship to the sunken ship by a crane, then the concrete block is carried to the row body by a carrying person, and then the concrete block is bound and fixed on the row body by a binding person by a tying strip;
step five, settling the raft body: the row sinking ship is provided with a clamping beam and a steel sliding plate, the clamping beam and a winding drum are released, five electric winches are started to work in a matched mode, corresponding steel cables are wound and unwound, the row sinking ship moves in parallel to the direction of the other side bank along the axis, and the row body slowly sinks into the bottom of the river along the steel sliding plate and is laid on the riverbed.
By adopting the technical scheme, the guide mark established in the step one can be matched with a GPS (global positioning system) on the sunken ship for use, so that the position of the sunken ship is convenient to determine and control, and the accurate laying of the row body is facilitated; in the second step, the sunken ship can be fixed from five directions through five steel cables, so that the sunken ship is not easy to change the position along with water flow in the construction process, the smooth operation of laying the row body is facilitated, and the movement direction of the sunken ship can be controlled by controlling the length of the expansion length of each steel cable when the position of the sunken ship needs to be changed; in the third step, the row heads of the row bodies are fixed on the river bank by a method of piling and pulling ropes, so that the row heads can be firmly connected and are not easy to loosen, the construction is more convenient, and the construction cost is not high; in the fourth step, the concrete block and the soft row body are fixed through the tying strips to form a whole, so that the row body is favorably sunk and the bottom protection is stable, the construction is convenient, and the construction quality is favorably optimized; the clamping row beams and the steel sliding plates are additionally arranged on the sunken ship, and the clamping row beams and the brake of the winding drum are matched for use, so that the effect of dual limitation of the row body can be achieved, the unnecessary sliding problem of the row body is avoided, the steel sliding plates can solve the problem that the row body is difficult to slide due to direct contact with the upper surface of the ship body, the row body can conveniently slide into water, the construction is more convenient, and the treatment process of sinking the row body in the step five is more efficient and safer; in conclusion, in the whole construction process, the guide mark and the GPS positioning system are matched for positioning, the running track of the sunken ship is accurately controlled, then the rows are sunken one by one, and meanwhile, the rows are reasonably lapped one by one on the ship body according to requirements to ensure the integrity of the bottom protection.
The invention is further provided with a sixth step of tailing disposal: when the water depth of the tail row can meet the draft requirement of the sunken ship and the row body is about to reach the designed bottom protection edge, the clamping row beams are clamped, the row body on the winding drum is withdrawn, a spare row body with the length of 12-15 meters is wound on the winding drum, the sunken row body is connected through nylon ropes and then continuously sunken, when the row head of the spare row body is sunken to reach the edge of the sunken ship working platform at the water inlet position, the clamping row beams are clamped, five electric winches are started to work in a matched mode and receive and release corresponding steel cables, the sunken ship is slowly controlled to move, the ship is stopped to move after connecting ropes of the two row bodies are tensioned, the connecting ropes are cut off through a chopper, the sunken row body naturally slides into the water, finally, the spare row body is newly wound on the winding drum and connected with the other row body, the sunken ship is moved to the position of the next row starting point, the process is repeated, and the sinking of all the row bodies is completed.
Through adopting above-mentioned technical scheme, when the depth of water of the position of row tail can satisfy the draft requirement of the row's of sinking ship, through above-mentioned mode, can arrange the body with a piece and couple together steadily, can ensure to arrange the body and steadily to lay moreover.
The invention is further provided with a sixth step of tailing disposal: when the depth of the tail water of the raft cannot meet the draught requirement of the sunken raft ship, binding 1-5 concrete blocks on the rest raft, sinking the raft into the bottom of the river according to the original sunken raft mode, starting five electric winches to work in a matching way and retracting corresponding steel cables when sinking, slowly controlling the ship body to move back and forth left and right slowly, enabling the raft to be regularly folded at the bottom of the river, tying a steel pipe at the tail end of the raft, tying a pull rope on the steel pipe, transiting the pull rope to a shoal by the fishing ship, pulling the steel pipe by manpower or a winch, flattening all the raft bodies at the bottom of the river, withdrawing the steel pipe by the fishing ship after finishing, and then uniformly throwing the concrete blocks carried by the fishing ship on the raft bodies in the area.
Through adopting above-mentioned technical scheme, when the depth of water of the position of row's tail was not enough to satisfy the draft requirement of the sunken ship, can't travel in this region during the sunken ship, so must be earlier at the river bottom with the regular folding of row's body, and tie the steel pipe in row's tail department, then abandon the sunken ship, expand the row's body successive layer of folding at the river bottom with fishing boat and stay cord, throw the concrete block on the row's body in this region at last again, the self gravity through the concrete block is fixed the row tail, above-mentioned row tail treatment mode can be with the relatively firm region of laying in the depth of water of row's body of protecting the end afterbody, and the construction is still more convenient.
The invention is further provided that five steel cables are respectively named as: the main push-towing device comprises a main push-towing rope, a left head push-towing rope, a left tail push-towing rope, a right head push-towing rope and a right tail push-towing rope, wherein the main push-towing rope and a corresponding electric capstan are located at the bow and are arranged, the left head push-towing rope, the left tail push-towing rope, the right head push-towing rope and the right tail push-towing rope are connected to four corners of a ship body respectively, a buried cow is dug on a river bank to be used for fixing one end, away from the electric capstan, of the right head push-towing rope and the right tail push.
By adopting the technical scheme, the sunken ship can be fixed from five directions through five steel cables, so that the sunken ship is not easy to change the position along with water flow in the construction process, the smooth operation of laying a row body is facilitated, and when the position of the sunken ship needs to be changed, the length of the unfolded length of each steel cable can be controlled, so that the moving direction of the sunken ship is controlled, for example, when the sunken ship needs to be controlled to move towards a river bank at the other side, a corresponding electric winch is started, the unfolded lengths of a left first cable and a left tail cable are prolonged, the unfolded lengths of a right first cable and a right tail cable are shortened, and then the unfolded length of a main cable is controlled according to the specific position of the sunken ship; and dig the mode of burying the ground ox at the river bank and be favorable to fixed first cable in the right side and right tail cable, first cable in the left side and left tail cable pass through fixed mode and the river bottom fixed connection of breaking down, and the structure is more stable firm.
The invention further provides that the method for piling the pull rope in the second step specifically comprises the following steps: the steel piles are hollow steel pipes with the diameter of 4-8 mm, the pile length of the steel piles is 1.5-2.4 m, the distance between every two steel piles is 2.8-3.2 m, nylon ropes are tied on the platoon heads and the steel piles respectively, and the platoon heads are provided with circular rings for tying the nylon ropes.
Through adopting above-mentioned technical scheme, through increasing the piling bar to provide the fixed basis of row's head, then reuse nylon rope will arrange head and piling bar fixed connection, thereby ensured the stability of row's head, effectively prevent that the construction from obtaining protects the end and slides, when the body is arranged in production, can require the producer to increase the ring at row's head specially in addition, the ring makes things convenient for the nylon rope to be connected fixedly with row's head, brings the convenience for the construction.
The invention is further arranged that in the fifth step, when the length of the upper row body of the winding drum is 2.5-3.5 meters, the clamping row beam is clamped, the row cushion on the winding drum is withdrawn, the lower row body is rolled, the two row bodies are butted and sewed, then the row bodies are tightly wound, concrete blocks are tied on the row bodies, the brake of the winding drum and the clamping row beam are loosened, five electric winches are started to work in a matching way and receive and release corresponding steel cables to control the movement of the sinking boat, the sinking of the next row body is continued, and the sinking is repeated until the laying length of the row bodies reaches the design length requirement of the bottom protection.
By adopting the technical scheme, when the length of the whole sole is longer, the length can be achieved by combining a plurality of rows, so that the key is to lap the adjacent rows and construct the adjacent rows.
The invention is further set that in the fifth step, in the process that the sunken ship moves in parallel along the axis to the other side bank, the real-time positioning data of the ship body provided by the GPS positioning system is used for continuously correcting the ship position, so that the upper and lower sidelines of the raft body are controlled to be positioned on the designed position of the original raft body when entering water, and a sunken raft track graph is drawn in time after the sinking of one raft body is finished, so as to determine the position of the next raft body.
Through adopting above-mentioned technical scheme, the mattress in-process, in order to guarantee that the row body sinks according to the design requirement and puts in place, guarantee the overlap joint width under water of two adjacent rows of bodies, it is the key that the construction of protecting the bottom is successful, consequently in the mattress work progress, must real time monitoring berth orbit, and the real-time location data of the hull that GPS positioning system can provide, then the driver of mattress ship can constantly rectify the position of ship according to above-mentioned location data, thereby when adjusting the position of mattress ship, mattress ship can go according to predetermined orbit, so also on the design position of original row body when easy control row body is gone up the lower sideline and is gone into water, can realize well sinking the effect that puts in place, effectively guarantee the overlap joint width under water of two adjacent rows of bodies.
The invention is further arranged that the concrete block is D-shaped and made of C20 concrete, the horizontal section of the concrete block is rectangular, two notches are arranged on the long edges of the two ends of the concrete block, and the notches are used for limiting tying strips.
By adopting the technical scheme, in order to ensure the firm connection between the concrete block and the row body, the tying strip can not horizontally slide preferably, the design of the notch can effectively prevent the tying strip from horizontally sliding in the laying construction process, so that the connection between the concrete block and the row body is firmer, and the notch is also more convenient to reserve when the concrete block is manufactured.
The invention is further provided that an iron ring is fixed in the gap of the concrete block, the tying strip passes through the iron ring, a plurality of embedded rods are arranged on the periphery of the iron ring, and the embedded rods are embedded in the concrete block.
Through adopting above-mentioned technical scheme, at the in-process of laying row's body, rocking can appear in the inevitable between concrete piece and the row body, consequently tying the strip can slide in the breach of concrete piece repeatedly, and the design of hoop can avoid tying the strip because of above-mentioned slip wearing and tearing, and then tying the strip difficult fracture, has both promoted the factor of safety in the construction process of laying, still is favorable to firm connection between concrete piece and the row body to the knot ballast software row that the construction obtained protects bottom structure life longer.
The invention further provides that the method further comprises a seventh step of preventing the exhaust body from aging: avoid arranging the body and receive sunshine during row body is laid, after arranging the body and laying and finishing, carry out the surface course construction or take the cover construction to the row body part that exposes to the water surface within 48 hours, the surface course construction specifically is: the concrete anti-corrosion coating finish paint is coated on the upper surface of the drainage part exposed out of the water surface, and the covering construction specifically comprises the following steps: the upper surface of the drainage body exposed out of the water surface is covered with a sunshade blanket.
Through adopting above-mentioned technical scheme, can avoid as far as possible to arrange the body because of the fast problem of ageing that sunshine direct injection brought, the surface course construction has the long advantage of anti-aging time for covering the construction moreover, and the covering construction then has construction convenience, advantage that construction cost is low for the surface course construction, and the staff can rationally select anti-aging measures according to actual conditions.
In conclusion, the beneficial technical effects of the invention are as follows:
firstly, in the whole construction process, a guide mark and a GPS positioning system are matched for positioning, the running track of the sunken ship is accurately controlled, then the rows are sunken one by one, and simultaneously, the rows are reasonably lapped one by one on the ship body according to requirements to ensure the integrity of the bottom protection;
secondly, when the water depth of the position of the row tail is not enough to meet the draught requirement of the sunken ship, the sunken ship cannot run in the area, so the row body must be regularly folded at the bottom of the river, a steel pipe is tied at the row tail, then the sunken ship is abandoned, the row body folded at the bottom of the river is unfolded layer by using a fishing ship and a pull rope, finally, concrete blocks are thrown on the row body in the area, the row tail is fixed through the self gravity of the concrete blocks, the row tail treatment mode can relatively firmly lay the row body at the tail part of the protective bottom in the shallow water depth area, and the construction is more convenient.
Drawings
FIG. 1 is a schematic flow chart of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a construction principle of the first embodiment of the invention;
figure 3 is a schematic structural view of a concrete block in the first embodiment of the invention;
fig. 4 is a schematic structural diagram of an iron ring and an embedded rod in the first embodiment of the present invention;
FIG. 5 is a schematic structural view of a row of beams and a steel slide plate in the first embodiment of the invention;
fig. 6 is a flowchart illustrating a second embodiment of the present invention.
Reference numerals: 1. sinking a ship; 2. an electric capstan; 3. a wire rope; 31. a main cable; 32. a left first cable; 33. a left tail cable; 34. a right first cable; 35. a right tail cable; 4. arranging a body; 5. concrete blocks; 51. an iron ring; 52. pre-burying a rod; 6. a reel; 7. clamping the row beam; 8. a steel slide plate; 9. and (5) guiding the mark.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the invention discloses a construction method of a tied ballast soft mattress protection bottom, which comprises the following steps: the method comprises the steps of arranging a guide sign S1, positioning S2, fixing a row head S3, arranging an upper tying concrete block S4, sinking a row body S5, arranging a tail S6 and preventing the row body from aging S7.
As shown in fig. 2, the setting guide S1: and (3) discharging a sunken row guide mark 9 point at the root of the bottom protecting belt according to the designed row width and the sunken row overlapping width, and marking for positioning the sunken row of the sunken ship 1. The established guide mark 9 can be matched with a GPS positioning system on the sunken ship 1 for use, so that the position of the sunken ship 1 is convenient to determine and control, and the accurate laying of the row body 4 is facilitated.
As shown in connection with fig. 2, the dotted arrow in fig. 2 indicates the direction of the water flow to contrast the bow position of the display sunken ship 1, positioning S2: the sunken ship 1 is equipped with five groups of electric capstan 2 and steel cable 3 on, electric capstan 2 is used for controlling the location and the removal of steel cable 3 receive and release in order to control sunken ship 1, five groups of electric capstan 2 are located the bow and the hull four corners arrangement of sunken ship 1 respectively, the one end anchor that electric capstan 2 was kept away from to steel cable 3 is fixed, sunken ship 1 is last to be provided with GPS positioning system in order to be used for controlling the ship position and move along design trajectory, sunken ship 1 is last still to be provided with electrically driven cylinder, sunken ship 1 is located on 4 design initial position of first block row body on low reaches limit during the sunken row, and roll up the cylinder to 4 first block row bodies. Through five steel cables 3, the sunken ship 1 can be fixed from five directions, so in the work progress, the sunken ship 1 is difficult for changing the position easily along with rivers, is favorable to going on smoothly of row body 4 laying work, and when the position of sunken ship 1 need to be changed, can be through controlling the length that each steel cable 3 expandes the length to the direction of controlling sunken ship 1 motion.
The five steel cables 3 are respectively named as: the main push-towing rope 31, the left first cable 32, the left tail cable 33, the right first cable 34, the right tail cable 35, the main push-towing rope 31 is located the bow with a corresponding electric capstan 2 and arranges, the left first cable 32, the left tail cable 33, the right first cable 34, the right tail cable 35 is connected respectively in the four corners of hull, dig the one end of burying the ox in order to be used for fixed right first cable 34 and right tail cable 35 to keep away from electric capstan 2 on the bank of a river, the one end that electric capstan 2 was kept away from to left first cable 32 and left tail cable 33 is fixed through the anchor handling. The sunken ship 1 can be fixed from five directions through the five steel cables 3, so that the sunken ship 1 is not easy to change the position along with water flow in the construction process, the smooth laying work of the row body 4 is facilitated, and when the position of the sunken ship 1 needs to be changed, the length of the unfolded length of each steel cable 3 can be controlled, so that the moving direction of the sunken ship 1 is controlled, for example, when the sunken ship 1 needs to be controlled to move towards the river bank at the other side, the corresponding electric winch 2 is started, the unfolded lengths of the left first cable 32 and the left tail cable 33 are prolonged, the unfolded lengths of the right first cable 34 and the right tail cable 35 are shortened, and then the unfolded length of the main cable 31 is controlled according to the specific position of the sunken ship 1; and the mode of digging the buried bull on the river bank is favorable to fixing the right first cable 34 and the right tail cable 35, and the left first cable 32 and the left tail cable 33 are fixedly connected with the river bottom in an anchoring and fixing mode, so that the structure is more stable and firm.
As shown in fig. 2, the row head fixing S3: after the row bodies 4 are wound into the winding drum 6, the row heads of the row bodies 4 on the drum are pulled to one side of a shore by nylon ropes, and the row heads are fixed by using a piling pull rope. The row heads of the row bodies 4 are fixed on the river bank by piling and pulling ropes, so that the row heads can be firmly connected and are not easy to loosen, the construction is convenient, and the construction cost is low.
The method for piling the pull rope comprises the following specific steps: the steel piles are hollow steel pipes with the diameter of 4-8 mm, the pile length of the steel piles is 1.5-2.4 m, the distance between every two steel piles is 2.8-3.2 m, nylon ropes are tied on the platoon heads and the steel piles respectively, and the platoon heads are provided with circular rings for tying the nylon ropes. Through increasing the piling bar to provide the fixed basis of row's head, then reuse nylon rope will arrange head and piling bar fixed connection, thereby ensured the stability of arranging the head, effectively prevent to construct the obtained end slip of protecting, when the body 4 is arranged in production, can require the producer to increase the ring at row's head specially in addition, the ring makes things convenient for the nylon rope to be connected fixedly with row's head, brings the convenience for the construction.
Referring to fig. 2 and 4, the tied concrete block S4: after the row head is fixed, the row body 4 is flatly laid on the sunken ship 1, the concrete block 5 is lifted from the transport ship to the sunken ship 1 by a crane, then the concrete block is carried to the row body 4 by a carrying person, and then the concrete block 5 is bound and fixed on the row body 4 by a binding person through a tying strip. The concrete block 5 and the soft row body 4 are fixed and integrated through the tying strips, so that the row body 4 is favorably sunk and the bottom protection is stable, the construction is convenient, and the construction quality is favorably optimized.
As shown in fig. 2 and 3, the sink drain S5: the row sinking ship 1 is provided with a clamping beam 7 and a steel sliding plate 8, the clamping beam 7 and a winding drum 6 are released, five electric winches 2 are started to work in a matching way and retract and release corresponding steel cables 3, the row sinking ship 1 moves in parallel along the axis to the direction of the other side bank, and the row body 4 slowly sinks into the river bottom along the steel sliding plate 8 and is laid on the river bed. Through increasing card row roof beam 7 and steel slide 8 at row ' S of sunken ship 1 is heavy, the cooperation of the brake of card row roof beam 7 and reel 6 is used, can play dual restriction row body 4 ' S effect, avoid row body 4 ' S unnecessary slip problem, steel slide 8 then can solve row body 4 and hull upper surface direct contact and be difficult to gliding problem, conveniently arrange body 4 and slide into aquatic, the construction is more convenient, so the handling process of sinking row body in step S5 is more high-efficient, safety.
When the length of 2.5-3.5 meters is left on the row body 4 on the winding drum 6, the clamping row beam 7 is clamped, the row cushion on the winding drum 6 is withdrawn, the lower row body 4 is rolled in, the two row bodies 4 are butted and sewed, then the row bodies 4 are tightly rolled, the concrete blocks 5 are tied on the row bodies 4, the brake of the winding drum 6 and the clamping row beam 7 are loosened, five electric winches 2 are started to work in a matching way and receive and release corresponding steel cables 3 to control the movement of the sunken ship 1, the sinking of the next row body 4 is continued, and the sinking is repeated until the laying length of the row bodies 4 reaches the design length requirement of the bottom protection. When the length of the whole bottom protector is longer, the length can be achieved by combining a plurality of rows of bodies 4, so that the key is to lap the adjacent rows of bodies 4 and to construct the same, the operation method can ensure that the two rows of bodies 4 are stably and firmly butted and sewn, and the construction is smooth and safe.
In the process that the sunken ship 1 moves in parallel along the axis to the other side bank direction, the real-time positioning data of the ship body provided by the GPS continuously corrects the ship position, so that the upper and lower sidelines of the row body 4 are controlled to be positioned at the designed position of the original row body 4 when entering water, and a sunken discharge track graph is drawn in time after the row body 4 is completely sunk to determine the position of the next row body 4. In the process of sinking and arranging, in order to ensure that the row body 4 sinks in place according to the design requirement, ensure the underwater lap joint width of the two adjacent row bodies 4, which is the key for successful construction of the bottom protection, therefore, in the process of sinking and arranging construction, the laying track must be monitored in real time, the real-time positioning data of the ship body can be provided by a GPS positioning system, then the driver of the sinking and arranging ship 1 can continuously correct the ship position according to the positioning data, thereby when the position of the sinking and arranging ship 1 is adjusted, the sinking and arranging ship 1 can run according to the preset track, so that the upper and lower sidelines of the row bodies 4 can be easily controlled to be submerged at the design position of the original row bodies 4, the effect of sinking in place can be well realized, and the underwater lap joint width of the two adjacent row bodies 4.
As shown in fig. 2 and 3, the tailing process S6: at the tail end of the raft, the depth of water can meet the draft requirement of the sunken ship 1 and when the raft body 4 is to reach the designed bottom protection edge, the clamping row beam 7 is clamped tightly, the row body 4 on the winding drum 6 is withdrawn, a spare row body 4 with the length of 12-15 meters is wound on the winding drum 6, the sinking body 4 is connected by a nylon rope and then is continuously sunk until the row head of the spare row body 4 reaches the edge of the working platform of the sinking vessel 1, the clamping row beams 7 are clamped tightly, five electric winches 2 are started to work in a matching way and retract corresponding steel cables 3, the sunken ship 1 is controlled to move slowly, the ship moving is stopped after connecting ropes of the two row bodies 4 are tensioned by stress, the connecting ropes are cut off by a chopper, the sunken row bodies 4 naturally slide into water, and finally, rolling the standby row body 4 into the winding drum 6 again, connecting another row body 4, moving the sunken ship 1 to the starting point position of the next row, and repeating the steps until all the row bodies 4 are completely sunken. When the water depth of the position of the row tail can meet the draught requirement of the sunken ship 1, the row bodies 4 can be stably connected through the mode, and the row bodies 4 can be stably paved.
Anti-aging of the discharge body S7: avoid arranging the body 4 and receive the sunshine during row body 4 lays, arrange the body 4 and lay the back that finishes, carry out the surface course construction or take the cover construction to the row body 4 part of the surface of water of exposure in 48 hours, the surface course construction specifically is: the upper surface of the part of the raft body 4 exposed out of the water surface is coated with concrete anti-corrosion coating finish paint, and the covering construction specifically comprises the following steps: the upper surface of the part of the row body 4 exposed out of the water surface is covered with a sunshade blanket. The problem that the row body 4 is fast to age due to direct sunlight can be avoided as much as possible, the surface layer construction has the advantage of long anti-aging time for the covering construction, the covering construction has the advantages of convenience in construction and low construction cost for the surface layer construction, and workers can reasonably select anti-aging measures according to actual conditions.
Referring to fig. 4 and 5, the concrete block 5 is D-shaped and made of C20 concrete, the horizontal section of the concrete block 5 is rectangular, and two notches are arranged on the long edges of the two ends of the concrete block 5 and used for limiting tying bars. In order to ensure the firm connection between the concrete block 5 and the row body 4 (see fig. 2), preferably, the tying strip can not slide horizontally, the design of the notch can effectively prevent the tying strip from sliding horizontally in the laying construction process, so that the connection between the concrete block 5 and the row body 4 is firmer, and the notch is convenient to reserve when the concrete block 5 is manufactured.
The implementation principle of the embodiment is as follows: in the whole construction process, the guide mark 9 and the GPS positioning system are matched for positioning, the running track of the sunken ship 1 is accurately controlled, then the row bodies 4 are sunken one by one, and meanwhile, the row bodies 4 are reasonably lapped one by one on the ship body according to requirements to ensure the integrity of the bottom protection.
Example two:
referring to fig. 4 and 6, the construction method for protecting the bottom of a tied ballast soft raft disclosed by the invention is different from the first embodiment in that the treatment mode of tail discharge treatment S6 is different, when the tail discharge water depth cannot meet the draught requirement of a sunken ship 1, the remaining raft 4 is tied to 1-5 concrete blocks 5, the raft 4 is sunken into the bottom of a river according to the original sunken raft mode, five electric winches 2 are started to work in a matching manner and retract corresponding steel cables 3 during sinking, the ship body is slowly controlled to slowly reciprocate leftwards and rightwards, the raft 4 is regularly folded at the bottom of the river, a steel pipe is tied at the tail end of the raft, the pull ropes on the steel pipe are transferred to a shoal by a fishing ship, the steel pipe is pulled by manpower or a winch, the raft 4 at the bottom of the river is completely pulled flat, the steel pipe is withdrawn by the fishing ship after finishing, and the concrete blocks 5 transferred by the fishing ship are uniformly thrown on the raft 4 in the area.
When the water depth of the tail row position is not enough to meet the draught requirement of the sunken ship 1, the sunken ship 1 cannot run in the region, so the row body 4 is regularly folded at the bottom of the river, a steel pipe is tied at the tail row position, the sunken ship 1 is abandoned, the row body 4 folded at the bottom of the river is unfolded layer by using a fishing boat and a pull rope, finally, concrete blocks 5 are thrown on the row body 4 in the region, the tail row is fixed by the self gravity of the concrete blocks 5, the tail row body 4 at the tail part of the bottom guard can be relatively firmly paved in the region with shallow water depth by the tail row treatment mode, and the construction is more convenient.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A construction method for tying and ballasting soft mattress protection bottom is characterized by comprising the following steps:
step one, setting a guide mark: according to the designed row width and the designed overlap width of the sunken row, a sunken row guide mark (9) point is released at the root of the bottom protecting belt and marked for the sunken row positioning of the sunken ship (1);
step two, positioning: the sunken ship (1) is provided with five groups of electric winches (2) and steel cables (3), the electric winches (2) are used for controlling the steel cables (3) to be retracted so as to control the positioning and movement of the sunken ship (1), the five groups of electric winches (2) are respectively arranged at the four corners of the bow and the hull of the sunken ship (1), one ends of the steel cables (3) far away from the electric winches (2) are fixedly anchored, the sunken ship (1) is provided with a GPS (global positioning system) positioning system so as to control the ship position to move along a designed trajectory line, the sunken ship (1) is also provided with an electrically driven roller, the sunken ship (1) is positioned at the designed initial position of a first block (4) at the downstream side during sunken ship, and the first block (4) is wound on the roller;
step three, fixing the row heads: after the row body (4) is wound into the winding drum (6), the row head of the row body (4) on the roller is pulled to the shore of one side by a nylon rope, and the row head is fixed by a method of piling and pulling a rope;
step four, arranging concrete blocks: after the row head is fixed, the row body (4) is flatly laid on the sunken ship (1), a crane is used for hoisting the concrete block (5) onto the sunken ship (1) from a transport ship, then the concrete block is moved onto the row body (4) by a carrying person, and then the concrete block (5) is bound and fixed on the row body (4) by a binding person through a tying strip;
step five, settling the raft body: the row sinking ship is characterized in that a clamping row beam (7) and a steel sliding plate (8) are arranged on the row sinking ship (1), the clamping row beam (7) and a winding drum (6) are released, five electric winches (2) are started to work in a matched mode and retract and release corresponding steel cables (3), the row sinking ship (1) is enabled to move in parallel to the direction of the other side bank along the axis, and a row body (4) slowly sinks into the bottom of a river along the steel sliding plate (8) and is laid on the riverbed.
2. The method for constructing tied ballast soft raft foundation according to claim 1, further comprising a sixth step of tailing treatment: when the water depth of the tail row can meet the draft requirement of the sunken ship (1) and the row body (4) is about to reach the designed bottom protection edge, the clamping and arranging beam (7) is clamped, the row body (4) on the winding drum (6) is withdrawn, a spare row body (4) with the length of 12-15 meters is wound on the winding drum (6), the sunken row body (4) is connected by a nylon rope and then continuously sunken, when the row head of the spare row body (4) reaches the edge of the submerged position of a working platform of the sunken ship (1), the clamping and arranging beam (7) is clamped, five electric winches (2) are started to work in a matching way and receive and release corresponding steel cables (3), the sunken ship (1) is slowly controlled to move, the ship is stopped to move after the connecting ropes of the two row bodies (4) are tensioned by force, the connecting ropes are cut off by a chopper, the sunken row body (4) is naturally slid into the water, and finally the spare row body (4) is rewound and connected with the winding drum (6) and another row body (4), and moving the sunken ship (1) to the starting point position of the next row, and repeating the steps until all the row bodies (4) are completely sunken.
3. The method for constructing tied ballast soft raft foundation according to claim 1, further comprising a sixth step of tailing treatment: when the depth of the tail water cannot meet the requirement of the draught of the sunken ship (1), 1-5 concrete blocks (5) are tied to the remaining row bodies (4), the row bodies (4) are sunken into the river bottom according to the original sunken mode, five electric winches (2) are started to work in a matched mode and receive and release corresponding steel cables (3) when the row bodies are sunken, the ship body is slowly controlled to move left and right in a reciprocating mode, the row bodies (4) are regularly folded at the river bottom, a steel pipe is tied to the tail end of the row bodies, pull ropes are tied to the steel pipes, the pull ropes are transited to a shoal through the fishing ship, the steel pipes are pulled through manpower or a winch, the river bottom row bodies (4) are all pulled flat, the steel pipes are withdrawn through the fishing ship after finishing, and the concrete blocks (5) are uniformly thrown onto the row bodies (4) in the area through the fishing ship.
4. The method for constructing tied ballast soft mattress foundation according to claim 1, wherein five steel cables (3) are respectively named as: the main cable (31), left first cable (32), left tail cable (33), right first cable (34), right tail cable (35), main cable (31) and a corresponding electric capstan (2) are located the bow and arrange, left first cable (32), left tail cable (33), right first cable (34), right tail cable (35) are connected respectively in the four corners of hull, dig the one end of burying the ox in order to be used for fixed right first cable (34) and right tail cable (35) and keeping away from electric capstan (2) in the river bank, the one end that electric capstan (2) were kept away from in left first cable (32) and left tail cable (33) is fixed through the anchor throwing.
5. The method for constructing a tied and ballasted soft mattress foundation according to claim 1, wherein the method for piling the pull rope in the second step is specifically as follows: the steel piles are hollow steel pipes with the diameter of 4-8 mm, the pile length of the steel piles is 1.5-2.4 m, the distance between every two steel piles is 2.8-3.2 m, nylon ropes are tied on the platoon heads and the steel piles respectively, and the platoon heads are provided with circular rings for tying the nylon ropes.
6. The tying ballasting soft mattress bottom protection construction method according to claim 1, characterized in that in step five, when the length of the upper mattress (4) of the winding drum (6) is 2.5-3.5 meters, the clamping and arranging beam (7) is clamped, the mattress on the winding drum (6) is withdrawn and rolled into the lower mattress (4), the two mattresses (4) are butt-jointed and sewed, then the mattress (4) is rolled, the concrete blocks (5) are tied on the mattress (4), the brake and the clamping and arranging beam (7) of the winding drum (6) are released, five electric winches (2) are started to cooperate and receive the corresponding steel cable (3) to control the movement of the sunken ship (1), the sinking of the next mattress (4) is continued, and the sinking is repeated until the laying length of the mattress (4) reaches the designed length requirement of the bottom protection.
7. The tying and ballasting soft raft bottom protection construction method according to claim 1, wherein in the fifth step, in the process that the sunken ship (1) moves in parallel along the axis to the other side bank direction, the real-time positioning data of the ship body provided by the GPS positioning system and the ship position are continuously corrected, so that the upper and lower sidelines of the raft body (4) are controlled to be at the designed position of the original raft body (4) when entering water, and a sunken raft trace map is drawn in time after the sinking of one raft body (4) is finished to determine the position of the next raft body (4).
8. The tying ballasting soft raft foundation construction method according to claim 1, wherein the concrete block (5) is D-shaped and made of C20 concrete, the horizontal section of the concrete block (5) is rectangular, and two notches are provided on the long sides of both ends of the concrete block (5), and the notches are used for limiting tying bars.
9. The tying and ballasting soft raft protection bottom construction method according to claim 8, wherein an iron ring (51) is fixed in the gap of the concrete block (5), tying bars pass through the iron ring (51), a plurality of pre-buried rods (52) are arranged on the periphery of the iron ring (51), and the pre-buried rods (52) are pre-buried in the concrete block (5).
10. The method for constructing the tied ballast soft raft protection bottom according to claim 1, further comprising a seventh step of preventing the raft from aging: avoid arranging body (4) and receive the sunshine during row body (4) are laid, arrange body (4) and lay the back that finishes, carry out the surface course construction or take the cover construction to row body (4) part of the surface of water within 48 hours, the surface course construction specifically is: the upper surface of the part of the drainage body (4) exposed out of the water surface is coated with concrete anticorrosion coating finish paint, and the covering construction specifically comprises the following steps: the upper surface of the part of the row body (4) exposed out of the water surface is covered with a sunshade blanket.
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